Loud speaker system for emergency vehicles



FIG. 1 is a front view of a loud speaker system for emergency vehicles showing my new design;

FIG. 2 is a side view thereof, the device having the identical appearance when viewed from the opposite side;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for a loud speaker system for emergency vehicles, as shown and described. 